<!--
 * @Description:
 * @notes: 
 * @Author: 台火山
 * @Date: 2024-04-21 17:44:52
 * @LastEditors: 台火山
 * @LastEditTime: 2024-04-24 00:28:09
-->
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>hello react</title>
</head>

<body>
    <!-- 准备号一个“容器” -->
    <div id="test"></div>
    <!-- 引入 react 核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入 react-dom,用于支持react操作 dom -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <!-- 引入 babel，用于将 jsx 转化为js -->
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <script type="text/babel">
        // 1.创建组件
        class Weather extends React.Component {

            // 初始化状态
            state = {
                isHot: true,
                wind: '微风'
            }

            render() {
                console.log('==this=', this);
                const { isHot, wind } = this.state;
                return <h1 onClick={this.changeWeather}>
                    今天天气很{isHot ? '炎热' : '凉爽'}，
                    {wind}
                </h1>
            }

            // 自定义方法 --- 要用赋值语句的形式+箭头函数
            changeWeather = () => {
                const isHot = this.state.isHot;
                this.setState({
                    isHot: !isHot
                })
            }

        }

        // 2.渲染
        ReactDOM.render(<Weather />, document.getElementById('test'));
    </script>
</body>

</html>